Kaposi's sarcoma in heterosexual intravenous drug users.

Kaposi's sarcoma is a feature of the acquired immunodeficiency syndrome (AIDS) in male homosexuals and Haitians. In this report the authors describe six heterosexual intravenous drug users who developed Kaposi's sarcoma. They had other characteristics of AIDS including opportunistic infections (oral candidiasis, six patients; Pneumocystis carinii pneumonia, two patients; genital herpes simplex, two patients; disseminated cytomegalovirus, one patient; Mycobacterium avium, one patient) and inversion of the normal ratio of helper-suppressor T-cell subsets in peripheral blood lymphocytes in the two patients in whom it was determined. These observations indicate that intravenous drug users as well as Haitians and homosexual men are at risk for developing Kaposi's sarcoma as part of the acquired immunodeficiency syndrome.